Nice and easy to use. The auto-switch off and empty is a great idea and saves considerable time and effort compared to some other pond vacs. I also love the idea of the clear hose, so you can see what you have cleaned up! Very rewarding sight! The only down side is the fact the vac has to be higher than the empty hose to empty. Would not be a problem if the pond is at ground level but mine isn't. I have to put the vac on a plastic box for it to empty, which poses a risk in itself. I have never found the pefect vac though.